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Residual stress distribution in built-in beams

机译:内置梁中的残余应力分布

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摘要

Metallic hyperstatic structures, like beams, submitted to excessive loads, do not fail completely before fully yielding in more than one cross section. Indeed, for built-in beams, three cross sections must be fully yielded before the final failure can occur. So, modeling the evolution of the cross-section residual stress distribution is an important subject that should be addressed to guarantee the stress analysis modeling correctness. This paper analyses the residual stress distribution evolution, in critical cross sections, of built-in beams during a transversal concentrated load growth, until the final failure through hinges formation. A finite element model is also presented. The results show good matches with the numerical model, used as a reference.
机译:金属高层结构,如横梁,提交到过度载荷,在完全屈服于一个以上的横截面之前不会完全失效。实际上,对于内置光束,必须在最终失败发生之前完全产生三个横截面。因此,建模横截面残余应力分布的演变是应该解决的重要主题,以保证压力分析建模正确性。本文分析了在横向浓缩负荷增长期间内置光束的临界横截面的残余应力分布演化,直到通过铰链形成的最终失效。还提出了有限元模型。结果显示了与数值模型的良好匹配,用作参考。

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